Blank making device of titanium alloy deep barrel and extrusion rolling forming method using same

The invention belongs to the technical field of metal material hot working forming, and particularly relates to a blank making device of a titanium alloy deep barrel and an extrusion rolling forming method using the device, the blank making device comprises a male die assembly and a female die assembly, the male die assembly is provided with a cylindrical male die head and a male die handle, and the female die assembly is provided with a female die cavity with the diameter larger than that of the male die head. A blanking hole which is smaller than the female die cavity in diameter and can be opened and closed is formed in the bottom of the female die cavity, the diameter of the blanking hole is matched with the diameter of the male die head, and the extrusion-rolling forming method using the device comprises the steps of blank size determining, blank heating, blank making device heating, backward extrusion, punching and the like. By means of the method, it is guaranteed that the intermediate blank with the t